Cǎn hộ loại I tǎng 10% , giá mới là 1.7xtimes 1.1 Cǎn hộ loại II giảm 5% , giá mới là 2.6ytimes 0.95

The question involves calculating the new prices of two different types of houses after applying percentage increases or decreases. <br /><br />1. For the first house, a 10% increase in price is applied. The original price is represented as \(1.7x\), where \(x\) is a variable representing the original price. A 10% increase means the new price will be the original price plus 10% of the original price. Mathematically, this is represented as \(1.7x \times 1.1\), where \(1.1\) is the result of adding 100% (the original price) and 10% (the increase), expressed as a decimal.<br /><br />2. For the second house, a 5% decrease in price is applied. The original price is represented as \(2.6y\), where \(y\) is a variable representing the original price. A 5% decrease means the new price will be the original price minus 5% of the original price. This is represented as \(2.6y \times 0.95\), where \(0.95\) is the result of subtracting 5% from 100%, expressed as a decimal.<br /><br />In both cases, the variables \(x\) and \(y\) are placeholders for the original prices of the houses, and the calculations are based on the percentage change applied to these original prices.